2.
Excellent mathematical discussion and integraph description, together with a table of results obtained by Buckley and Hedeman, already referred to by us in reviewing an earlier paper by Tea (MTAC, v. 2, p. 41-42).

Excellent mathematical discussion and integraph description, together with a table of results obtained by Buckley and Hedeman, already referred to by us in reviewing an earlier paper by Tea (MTAC, v. 2, p. 41-42).